The preparation of cellulose nanostructures is considered in this paper. Cellulose nanoparticles (nano cellulose) were extracted from cinnamon for the first time. The chemically-induced destruction strategy based on controlled strong acid hydrolysis treatment was used for dissolution of lignin and fragmentation of cellulose to nano sized structure. The products were characterized with scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR), UV-Vis and Mass spectroscopy. SEM images demonstrated the cellulose nanoparticles production. Size distribution histogram which was obtained from the SEM image showed that nanoparticles size were less than 100 nm with average size about 50 nm. XRD analysis showed amorphous structure for nanoparticles. Chemical structures and functional group of cellulose nanoparticles approved using FT-IR. UV-VIS spectrum of macro cellulose, micro cellulose and nano cellulose were done in water, acetone and acetic acid. These spectrums illustrate the same absorption for tree materials in agues, organic and acidic solvents approving the stability of structures and maintaining molecular structure during making nano cellulose. Mass spectroscopy peaks agree well with the structure of the cellulose and its fragmentation during analysis. Manuscript profile

The preparation of cellulose nanostructures is considered in this paper. Cellulose nanoparticles(nano cellulose) were extracted from cinnamon for the first time. The chemically-induceddestruction strategy based on controlled strong acid hydrolysis treatment was used for dissolutionof lignin and fragmentation of cellulose to nano sized structure. The products werecharacterized by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transforminfrared (FT-IR), UV-Vis and Mass spectroscopy. SEM images demonstrated the cellulosenanoparticles production. Size distribution histogram which was obtained from the SEM imageshowed that nanoparticles size were less than 100 nm with average size about 50 nm. XRDanalysis showed amorphous structure of nanoparticles. Chemical structures and functionalgroup of cellulose nanoparticles approved using FT-IR. UV-VIS spectrum of macro cellulose,micro cellulose and nano cellulose were done in water, acetone and acetic acid. These spectrumsillustrate the same absorption for tree materials in agues, organic and acidic solventsapproving the stability of structures and maintaining molecular structure during making nanocellulose. Mass spectroscopy peaks are in good agreement with the structure of the celluloseand its fragmentation during analysis. Manuscript profile

The preparation and application of novel nanocatalysts for oxidation reaction via a simple, effective, green method remains a challenge; thus, in this study, a facile and eco-friendly approach is suggested to fabricate pomegranate peel extract (PPE) functionalized on silicate-coated Fe3O4 nanoparticles (Fe3O4@SiO2-PPE). The physicochemical characteristics of the magnetic Fe3O4@SiO2-PPE nanocomposite were evaluated using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques. SEM images showed well-distributed nanoparticles in shape and size with a mean diameter of 42 nm. FT-IR and TEM images proved appropriate functionalization with pomegranate peel extract. The Fe3O4@SiO2-PPE nanocatalyst was found to be useful in the selective oxidation of benzyl alcohols to the relevant aldehydes/ketones without significant over oxidation and with good-to-excellent (about 95%) yields under solvent-free conditions at room temperature. The results revealed that the prepared catalyst was easily recovered and reused for five consecutive oxidation cycles without losing selectivity towards desired products in the benzyl alcohol oxidation. Manuscript profile

This study was conducted in order to determine the effects of different concentrations of synthesized Fe3O4 nanoparticles (NPs) on the growth, the content of secondary metabolites and antioxidant capacity in Matricaria chamomilla. With this aim, four levels of Fe3O4 NPs concentrations were applied as follows: basic Murashing and Skoog solution (control), 25, 50 and 100 mg L-1 Fe3O4 NPs. The results indicated that the biomass was higher in the plants that were treated with 25 mg L-1 Fe3O4 NPs than the control plants. Biomass was declined in 50 and 100 mg L-1 Fe3O4-exposed plants compared with the unexposed plants. Relative water content was gradually decreased with the enhancement of Fe3O4 concentration. Fe3O4 NPs in 50 and 100 mg L-1 caused a significant induction in number of root. Fe3O4 NPs treatment enhanced production of secondary metabolites such as total phenol and total flavonoid in roots and leaves of M. chamomilla. Moreover, Fe3O4 NPs increased antioxidant ability of the roots and leaves by inducing DPPH scavenging activity at 25 mg L-1 Fe3O4. The results might identify that the application of Fe3O4 NPs can be a useful war for increasing higher content of secondary metabolites in the M. chamomilla plants. Manuscript profile

با توجه به گسترش و اهمیت نانوفیبرها در زمینه علوم دارویی و قابلیت استفاده از آن‌ها به‌عنوان پچ های پوستی حاوی داروهای موضعی، در این پژوهش، با افزودن کلیندامایسین به بسپارهای پلی وینیل الکل/پلی وینیل پیرولیدن و سپس الکتروریسی محلول بسپار، نانوفیبرهای حامل کلیندامایسین به‌دست آمد. نانوفیبرهای به دست آمده با طیف سنجی فروسرخ تبدیل فوریه (FTIR)، میکروسکوپ نیروی اتمی (AFM)، میکروسکوپ الکترونی روبشی گسیل میدانی (FESEM)، طیف¬سنجی تفکیک انرژی (EDS)، نگاشت عنصری و آزمون زاویه تماس بررسی شدند. ﺑﺮرﺳﯽ ﻣﺎﻫﯿﺖ ﭘﯿﻮﻧـﺪ بین داروی کلیندامایسین با بستر پلی وینیل الکل/پلی وینیل پیرولیدن با نظریه کوانتومی اتم در مولکول (QTAIM) انجام شد. اثرهای پادباکتری محلول بسپار الکتروریسی نشده و نمدهای نانوفیبری به دست آمده بر سویه های استاندارد باکتری های سودوموناس آئروجینوزا، آسینتوباکتر و استافیلوکوکوس اورئوس بررسی شد. برپایه نتیجه های به دست آمده باکتری سودوموناس آئروجینوزا در برابر محلول بسپار الکتروریسی نشده و نیز نمد نانوفیبری کلیندامایسین مقاوم است. باکتری آسینتوباکتر در برابر محلول بسپار مقاوم است، ولی نانوفیبر کلیندامایسین بر آن اثر متوسطی دارد. نمد نانوفیبری کلیندامایسین و محلول بسپار الکتروریسی نشده بر باکتری استافیلوکوکوس اورئوس بسیار موثر هستند. بنابراین، نمد نانوفیبری کلیندامایسین به عنوان چسب پوستی برای درمان عفونت‌های ناشی از باکتری استافیلوکوکوس ارئوس و آسینتوباکتر می تواند به کاررود. همچنین، محلول بسپار به عنوان یک محلول دارویی در درمان موضعی عفونت ناشی از باکتری های استافیلوکوکوس اورئوس می تواند مفید واقع شود. Manuscript profile